Window



Nov. 12, 1940.

E. S.- PERSSON WINDOW 3 Sheets-Slieet 1 Filed March-31, 1959 R m 0 O E m m VS m. m J D ,v n K F W G 8 IIVL R B Nov. 12, 1940.

, E. s. PERSSON' WINDOW File d March 31, 1959 3 Sheets-Sheet 2 INVENTOR. I

" ERlc, SIGFRID PERssp/v 'Nov, 12, 1940.-. v E. s. PERSSON 2,221,058

WINDOW Filed March 31, 1939 3 Sheets-Shget 3 i ll? INVENTOR.

Ema SIGFRID PERSSON' BY Patented Nov. 12, 1940 PATENT OFFICE WINDOW Eric Sigfri d Persson, Mal na, Sweden Application March 31, 1939, SriaQl No. 265,300 In Sweden April 13, 1938 i The present invention relates to hinge means particularly for windows mounted to pivot on a horizontal axis. The 'objects of the invention will be obvious from the following description.

Figures 1+3 show vertical sectional views of the hinge means of n the invention in different positions. n

Fig. 4 shows a sectional View on line D- -D of Fig. 1.

Fig. 5 shows, on a decreased scale, a sectional View of a, window provided with hinge means according to .the invention. n

Fig, 6 is a side elevational View of the grooved element of a hinge according to the invention, parts of the other hinge element being shown in broken lines and the window element being represented bythin solidlines. n

Fig. 7 is a similar view, showing the window partly open.

Fig. 8 is a sectional view taken on line. E-E ofFig.6. K i p Y As shown in the drawings, 2| indicates a window frame, and 22 a window sash mounted to pivot therein. The hinge comprises a mainpart 23 secured to the frame and another main part 24 facing said part 23 and secured to the sash.

means. In the closed position of i the sash shown in Fig. 1 said member 25 rests on a bearing surface 26 of the part 23.

The member 25 and its bearing surface 26 form parts of laterally projecting portions 21 and 28, respectively, provided at the main parts 24 and 23 of the hinge and forming tightening abutments for corresponding abutment surfaces in the frame and the sash, respectively. This insures a tight joint between frame and sash at the hinge means. The space between the frame 2| and the sash 22 at the vertical edges of the window is filled by a wooden rib secured to the sash above. the hinge and another wooden rib secured to the frame belowthe hinge. Said wooden ribs form a continuation of the tightening abutments between frame and sash formed by the laterally projecting parts 21 and 28.

When the window is being opened for ventilation purposes, the sash pivots on the bearing surface 26 until a pin 29 serving as a pivot has described an arcuate path around the pivot axis passing through the member 25, and when displaced from the position shown in Fig. 1 tothat an angle of180, the hinges occupy the position shown. in Fig. 2 saidpin 29 reaches the bottom ofthe guiding slot 30 of the other main part 23. In'the example illustrated said pin 29 is' screwed into the main part 24 and provided with a lock nut. Preferably the window sashes with 5 their panes and fittings are arranged in such a manner as to make the common centre of gravity of the turnable window parts lie some where between the vertical planes through the pivot axes at 25 and 29 when the window oecupies theposition shown in Fig. 2. The sashes are in stable equilibrium in this position (Fig.2) which they always tend to occupy When the centre of gravity comes betweensaid two vertical planes. In order to obtain a good ventilation effect said equilibrium position is chosen in such a way asto make the sash ofa window of normal height form an angle of about 10 to 30 with the vertical plane, or so as to place the bottom edge of its inside about 4 to 8 inches from the outside of the window frame.

When the windowis being opened, as for instance for the purpose of cleaningthe outside of the outer pane, the sashes are turned still more pivoting on the pin 29. The main parts of the hinge are shaped in such a way as to render the movement of the part 24 secured to the sash unobstructed by the other main part 23 when turning the sash. When the sashes are turned through I shown in Fig. 3. In this position it is also possible to separate the'sashes from the .frame by lifting the sashes so as to make the pin 29 pass out through the upper open end of the slot 30. The mountingof the sashes is performed by moving them the other way, i. e. by passing the pins 29 into" the slots 3ll. i The window is closed by turning the sashes in a direction contrary to the opening direction.

By setting the screw 29, the desired degree of friction can be obtainedbetween the parts of the hinge thus causing a certain braking effect to the movable parts. In a modified embodiment of the invention as shown in Figs. 6, 7 and 8, the cover is made integral with the hinge means. Thus, the part 23, instead of having a slot 30, is provided with a groove 44 that does not penetrate the side wall of said part 23. One wall of said groove 44 is formed by a flange 45 of the part 23 extending all the way from the top to the bottom of the portion of said hinge visible at the front of the window, as shown in Figs. 6- and '7. The other wall of said groove 44 is formed by a piece 46 which is preferably riveted or welded to the part 23 and which also forms the bottom 4'! of said groove.

The part 24 of the hinge extends straight out to the outside of the flange 45, thereby forming a slot 3| a between the edge 'of said flange 45 and the inside edge portion of said part 24. Other reference letters correspond to those used in connection with Figs. 1 to inclusive.

The invention is not limited to the embodiments shown and described. Among modifications with the scope of the invention, it may be mentioned that the whole hinge device in the described embodiments can be mounted upside down. Then the opening of the slot 30 or groove 1 44 will point downwards instead of upwards, and the part 23 will be secured to the sash while the part 24 is secured to the frame. The number of pivot axes can be more than two and, like the bearing surfaces, they can be shaped in different ways.

At the inside of the window the hinge is preferably provided with a cover which is suitably made concentric with the slot 30 and comprises two parts. One of said parts is connected with the frame 2! and the other with the sash 22. Each part of said cover conceals one of the main parts of the hinge and reaches to the joint 3| between said main parts.

I claim:

1. A hinge for a window having a frame and a sash adapted to pivot on a central horizontal axis in said frame, said hinge comprising a bearing member secured to the window frame, a pivot member secured to the window sash, two separate bearing surfaces on said bearing member, and two separate pivots on said pivot member each for coaction with one of said bearing surfaces, said pivots being so'positioned as to make the window sash occupy a stable equilibrium positioned with both pivots resting on their bearing surfaces, the window sash being movable from said equilibrium position towards closed position on one of said pivots and from the same equilibrium position in the opposite direction on the other pivot.

2. A hinge for a window having a frame and a sash adapted to pivot on a central horizontal axis in said frame, said hinge comprising a bearing member'secured to the window frame, a'pivot member secured to the window sash, two separate bearing surfaces on said bearing member, one of said bearing surfaces forming the bottom of an arcuated open-ended slot having its center approximately in the other bearing surface, and two separate pivots on said pivot member each for coaction with one of said bearing surfaces, said pivots being so positioned as to make the window sash occupy a stable equilibrium position with both pivots resting on their bearing surfaces, the window sash being movable from said equilibrium position towards closed position on one of said pivots and from the same equilibrium position in-the opposite direction on the other pivot.

3. An hinge for a window having a frame and a sash adapted to pivot on a central horizontal ing therewith forming parts of a projection of the bearingmember and the pivot member, respectively, said projections covering the joint between the window frame and the window sash, said pivots being so positioned as to make the window sash occupy a stable equilibrium position with both pivots resting on their bearing surfaces, the window sash being movable from said equilibrium position towards closed position on one of said pivots and from the same equilibrium position in the opposite direction on the other pivot.

4; A hinge for a window having a frame and a sash-adapted to pivot on a central horizontal axis in said frame, said hinge comprising a bearing member secured to the window frame, a pivot member secured to the window sash, two separate bearing surfaces on said bearing member, one of said bearing surfaces forming the bottom of an arcuated open-ended slot having its center approximately in the other bearing surface, and two separate pivots on said pivot member. each for coaction with one of said bearing surfaces, one of said bearing surfaces and the pivot .coacting therewith forming parts of a projection of the bearing member and the pivot member, respectively, said projections covering the joint between the window frame andthe window sash, said pivots being so positioned as to make the window sash occupy a stable equilibrium position with both pivots resting on their bearing surfaces, the window sash being movable from said equilibrium position towards closed position on one of said pivots and from the same equilibrium position in the opposite direction on the other pivot.

5. A hinge for a window having a frame and a sash adapted to pivot on a central horizontal axis in said frame, said hingecomprising a bearing member secured to the window frame, a pivot member secured to the window sash, two separate bearing surfaces on said bearing member, one of said bearing surfaces forming the bottom of an arcu'ated open-ended groove having its center approximately in the other bearing surface, and two separate pivots on said pivot member each for coaction with one of said bearing surfaces, said arcuated open-ended groove and the pivot coacting therewith forming parts of a projection of the bearing member and the pivot member, respectively, said projections covering and concealing the arcuated open-ended groove and the pivot pin, said pivots being so positioned as to make the window sash occupy a stable equilibrium position with both pivots resting on their bearing surfaces, the window sash being movable towards closed position on one of said pivots and in the opposite direction on the other pivot. 7

ERIC SIGFRID PERSSON. 

